Aids kills some 6,000 people each day in Africa - more than wars, famines and floods. Millions of children are orphans, many more live with HIV or Aids.

In Zimbabwe, almost 1.2 million children have been orphaned by HIV/Aids.

Many grandmothers, who assume responsibility for orphans, are living in absolute poverty, and struggling daily to provide for the numerous children under their care.

After having endured the trauma and distress of watching their children and grandchildren struggle with the deadly disease, the stress and isolation is compounded by the lack of resources available to them.

Al Jazeera's Imran Khan reports on the country's elderly population who have to be brave when faced with adversity.